It's possible to get credit on your LLC, though.

ThanksEstimate on Monthly Finances4 units leased at $2600 ( $650Each)Monthly  Income $2200.00Total of $4,800 Credit Score 747

We’re both in college, and while we both have respectable jobs (by college standards) and strong credit, we’re aware that it’ll be very difficult to find hard money loans in our position.

They will look at your credit score, experience and liquidity.

Once you pay down mortgage, you can't get it back out until you sell the house (or pull out a line of credit).

Or you could just get a personal line of credit. 

You can also have the funding and then not get the property under contract and then you have to reapply for the loan, ping your credit....not the best way.Both options work, it depends on you as an investor and what you feel comfortable doing.  

Could be debt ratio, down payment, credit score etc...Try Home Possible. 

But if you are improving any structural components at the property, you will need an engineers stamp on plans as well.

Welp, "average" rent is $685 and that's the average for occupied units, if several are vacant, don't assume they will fetch the average for the building without being renovated or improved.